SEC FORM 3 SEC Form 3
FORM 3 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person*
ENRIGHT PATRICK G

(Last) (First) (Middle)
800 EL CAMINO REAL
SUITE 220

(Street)
MENLO PARK CA 94025

(City) (State) (Zip)
2. Date of Event Requiring Statement (Month/Day/Year)
06/25/2013
3. Issuer Name and Ticker or Trading Symbol
Esperion Therapeutics, Inc. [ ESPR ]
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director X 10% Owner
Officer (give title below) Other (specify below)
5. If Amendment, Date of Original Filed (Month/Day/Year)
6. Individual or Joint/Group Filing (Check Applicable Line)
X Form filed by One Reporting Person
Form filed by More than One Reporting Person
Table I - Non-Derivative Securities Beneficially Owned
1. Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)
Table II - Derivative Securities Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4) 2. Date Exercisable and Expiration Date (Month/Day/Year) 3. Title and Amount of Securities Underlying Derivative Security (Instr. 4) 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 6. Nature of Indirect Beneficial Ownership (Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Series A Preferred Stock (1) (1) Common Stock 1,683,967 (1) I By Longitude Venture Partners, L.P.(2)
Series A Preferred Stock (1) (1) Common Stock 33,753 (1) I By Longitude Capital Associates, L.P.(2)
Explanation of Responses:
1. The Series A Preferred Stock is convertible into Common Stock on a 6.986-for-1 basis at any time at the holder's election, and automatically upon the closing of the Issuer's initial public offering, and has no expiration date.
2. Mr. Enright is a managing member of Longitude Capital Partners, LLC ("Longitude Capital"). Longitude Capital, as general partner of each of Longitude Venture Partners, L.P. ("LVP") and Longitude Capital Associates, L.P. ("LCA"), has the power to vote and dispose of securities held by each of them and may be deemed to have beneficial ownership of the shares owned by LVP and LCA. Mr. Enright disclaims beneficial ownership of the shares held by the Longitude Capital entities, except to the extent of his pecuniary interest therein.
/s/ Richard B. Bartram, by power of attorney 06/25/2013
** Signature of Reporting Person Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 5 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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                      POWER OF ATTORNEY

Know all by these presents, that the undersigned hereby authorizes 
each of Tim M. Mayleben, Richard B. Bartram, and Troy A. Ignelzi, 
of Esperion Therapeutics, Inc., a Delaware corporation (the 
"Company"), individually to execute for and on behalf of the 
undersigned, in the undersigned's capacity as an Officer and/or 
Director of the Company, Forms 3, 4 and 5, and any amendments 
thereto, and cause such form(s) to be filed with the United States 
Securities and Exchange Commission pursuant to Section 16(a) of 
the Securities Act of 1934, relating to the undersigned's 
beneficial ownership of securities in the Company. The undersigned 
hereby grants to each such attorney-in-fact full power and 
authority to do and perform any and every act and thing whatsoever 
requisite, necessary, or proper to be done in the exercise of any 
of the rights and powers herein granted, as fully to all intents 
and purposes as the undersigned might or could do if personally 
present, with full power of substitution or revocation, hereby 
ratifying and confirming all such attorneys-in-fact, or such 
attorneys-in-facts' substitute or substitutes, shall lawfully do 
or cause to be done by virtue of this power of attorney and the 
rights and powers
 herein granted. The undersigned acknowledges 
that the foregoing attorneys-in-fact, in serving in such 
capacities at the request of the undersigned, are not assuming, 
nor is the Company assuming, any of the undersigned's 
responsibilities to comply with Section 16 of the Securities 
Exchange Act of 1934.

This Power of Attorney shall remain in full force and effect until 
the earliest of: (1) the undersigned is no longer required to file 
Forms 3, 4 and 5 with respect to the undersigned's holdings of, 
and transactions in, securities issued by the Company; (2) this 
Power of Attorney is revoked by the undersigned in a signed 
writing delivered to the foregoing attorneys-in-fact; or (3) as to 
a specific attorney-in-fact, the employment of such 
attorney-in-fact with the Company is terminated.

IN WITNESS WHEREOF, the undersigned has caused this Power of 
Attorney to be executed as of this 24th day of June, 2013.

/s/ Patrick Enright 
  (Sign Name)
Patrick Enright 
  (Type Name)